Accession Number : AD0003617


Title :   THE DETERMINATION AND DISTRIBUTION OF ORGANIC PHOSPHORUS IN SEA WATER. PART 1. THE DETERMINATION OF ORGANIC PHOSPHORUS IN SEA WATER WITH PERCHLORIC ACID OXIDATION


Descriptive Note : Technical rept.


Corporate Author : WASHINGTON UNIV SEATTLE


Personal Author(s) : HANSEN, ANDREW L ; ROBINSON, REX J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/003617.pdf


Report Date : Nov 1952


Pagination or Media Count : 29


Abstract : A method is proposed for determining the organic P content in sea water by which the organic material is oxidized with HClO sub 4 and the organic P is converted to phosphate. HClO sub 4 was a better medium for oxidation that H sub 2 SO sub 4 in 2 respects: (1) the perchlorate salts formed upon the digestion of sea water were more readily H sub 2 O-soluble, and (2) HClO sub 4 required a smaller blank correction for impurities. By heating the samples with concentrated HCl, arsenic interference through the volatilization of the chloride was prevented. Total P was determined colorimetrically; organic P was calculated by deducting the inorganic P. For samples of high organic content, preliminary digestion with HNO sub 3 was desirable before HClO sub 4 digestion.


Descriptors :   *CHEMICAL OCEANOGRAPHY , CONVERSION , WATER , IMPURITIES , OXIDATION , ORGANIC MATERIALS , INTERFERENCE , CHLORIDES , VOLATILITY , ARSENIC , SEA WATER , ORGANIC PHOSPHORUS COMPOUNDS , DIGESTION(BIOLOGY) , PHOSPHATES , PERCHLORIC ACID


Subject Categories : Biological Oceanography
      Physical and Dynamic Oceanography


Distribution Statement : APPROVED FOR PUBLIC RELEASE